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1. 发明申请

US20100175795A1 Steel Wire Rod for High Strength and High Toughness Spring Having Excellent Cold Workability, Method for Producing the Same and Method for Producing Spring by Using the Same 有权
标题翻译：用于具有优异的冷加工性的高强度和高韧性弹簧的钢丝杆及其制造方法和使用该弹簧的方法
公开(公告)号：US20100175795A1
公开(公告)日：2010-07-15
申请号：US12445004
申请日：2007-10-10
申请人： Sang Woo Choi , Hoe Young Jung , Yong Tae Shin , Duk Lak Lee , Jeong Do Seo , Jay Hyung Jung , Byoung Ju Park , Jae Seung Lee
发明人： Sang Woo Choi , Hoe Young Jung , Yong Tae Shin , Duk Lak Lee , Jeong Do Seo , Jay Hyung Jung , Byoung Ju Park , Jae Seung Lee
IPC分类号： C21D9/52 , C22C38/42 , B21B1/08 , B21B27/06
CPC分类号： C22C38/46 , C21D8/06 , C21D9/02 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/50 , C22C38/54
摘要： Provided is a steel wire rod for a high strength and high toughness spring having excellent cold workability, the steel wire rod having a composition comprising: in weight %, C: 0.4 to 0.7%, Si: 1.5 to 3.5%, Mn: 0.3 to 1.0%, Cr: 0.01 to 1.5%, Ni: 0.01 to 1.0%, Cu: 0.01 to 1.0%, B: 0.005 to 0.02%, Al: 0.1% or less, O: 0.0020% or less, P: 0.02% or less, S: 0.02% or less, N: 0.02% or less, remainder Fe, and other unavoidable impurities, having a microstructure formed of ferrite and pearlite, and in which a prior (before cooling) austenite grain size is 8 μm or less.
摘要翻译：本发明提供一种具有优异的冷加工性的高强度高韧性弹簧用钢丝棒，其特征在于，所述钢线材的组成为：重量％，C：0.4〜0.7％，Si：1.5〜3.5％，Mn：0.3〜 1.0％，Cr：0.01〜1.5％，Ni：0.01〜1.0％，Cu：0.01〜1.0％，B：0.005〜0.02％，Al：0.1％以下，O：0.0020％以下，P：0.02％ S：0.02％以下，N：0.02％以下，余量为Fe，其他不可避免的杂质，具有由铁素体和珠光体组成的组织，其中先（冷却前）奥氏体晶粒度为8μm以下。

2. 发明授权

US08734599B2 Steel wire rod for high strength and high toughness spring having excellent cold workability, method for producing the same and method for producing spring by using the same 有权
标题翻译：用于具有优异的冷加工性的高强度和高韧性弹簧的钢丝杆及其制造方法和使用该弹簧的方法
公开(公告)号：US08734599B2
公开(公告)日：2014-05-27
申请号：US12445004
申请日：2007-10-10
申请人： Sang Woo Choi , Hoe Young Jung , Yong Tae Shin , Duk Lak Lee , Jeong Do Seo , Jay Hyung Jung , Byoung Ju Park , Jae Seung Lee
发明人： Sang Woo Choi , Hoe Young Jung , Yong Tae Shin , Duk Lak Lee , Jeong Do Seo , Jay Hyung Jung , Byoung Ju Park , Jae Seung Lee
IPC分类号： C22C38/34 , C22C38/20 , C22C38/42 , C21D8/06 , C21D9/02
CPC分类号： C22C38/46 , C21D8/06 , C21D9/02 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/50 , C22C38/54
摘要： Provided is a steel wire rod for a high strength and high toughness spring having excellent cold workability, the steel wire rod having a composition comprising: in weight %, C: 0.4 to 0.7%, Si: 1.5 to 3.5%, Mn: 0.3 to 1.0%, Cr: 0.01 to 1.5%, Ni: 0.01 to 1.0%, Cu: 0.01 to 1.0%, B: 0.005 to 0.02%, Al: 0.1% or less, O: 0.0020% or less, P: 0.02% or less, S: 0.02% or less, N: 0.02% or less, remainder Fe, and other unavoidable impurities, having a microstructure formed of ferrite and pearlite, and in which a prior (before cooling) austenite grain size is 8 μm or less.
摘要翻译：本发明提供一种具有优异的冷加工性的高强度高韧性弹簧用钢丝棒，其特征在于，所述钢线材的组成为：重量％，C：0.4〜0.7％，Si：1.5〜3.5％，Mn：0.3〜 1.0％，Cr：0.01〜1.5％，Ni：0.01〜1.0％，Cu：0.01〜1.0％，B：0.005〜0.02％，Al：0.1％以下，O：0.0020％以下，P：0.02％ S：0.02％以下，N：0.02％以下，余量为Fe，其他不可避免的杂质，具有由铁素体和珠光体组成的组织，其中先（冷却前）奥氏体晶粒度为8μm以下。

3. 发明授权

US08516868B2 Dies for shear drawing 有权
标题翻译：模具用于剪切
公开(公告)号：US08516868B2
公开(公告)日：2013-08-27
申请号：US13141116
申请日：2009-12-10
申请人： Ki-Ho Rhee , Il-Heon Son , Joong-Ki Hwang , Duk-Lak Lee
发明人： Ki-Ho Rhee , Il-Heon Son , Joong-Ki Hwang , Duk-Lak Lee
IPC分类号： B21C23/00
CPC分类号： B21C1/003 , B21C3/04 , B21C23/001
摘要： Provided is a die for shear drawing capable of performing continuous drawing and shear deformation at the same time. The die for shear drawing includes a material processing channel in which a material is sheared and drawn while passing therethrough, wherein the processing channel includes an inlet path positioned at a front end thereof, and an outlet path positioned at a rear end thereof, when viewed from a movement direction of a material. The inlet path and the outlet path are connected to intersect a central axes thereof at a certain angle, and the processing channel includes a cross-section reduction segment allowing an outlet cross-sectional area of the outlet path to be smaller than an inlet cross-sectional area of the inlet path to thereby draw out a material from an exit of the outlet path with the material filled therein.
摘要翻译：提供一种能够同时进行连续拉伸和剪切变形的剪切拉伸模具。用于剪切的模具包括材料处理通道，其中材料在通过时被剪切和拉伸，其中处理通道包括位于其前端的入口路径和位于其后端处的出口路径从材料的移动方向。入口路径和出口路径以一定的角度连接成与其中心轴线相交，并且处理通道包括允许出口路径的出口横截面面积小于入口横截面积的横截面减小段，从而从填充在其中的材料的出口路径的出口抽出材料。

4. 发明申请

US20110247388A1 DIES FOR SHEAR DRAWING 有权
标题翻译：剪刀图
公开(公告)号：US20110247388A1
公开(公告)日：2011-10-13
申请号：US13141116
申请日：2009-12-10
申请人： Ki-Ho Rhee , Il-Heon Son , Joong-Ki Hwang , Duk-Lak Lee
发明人： Ki-Ho Rhee , Il-Heon Son , Joong-Ki Hwang , Duk-Lak Lee
IPC分类号： B21D5/02
CPC分类号： B21C1/003 , B21C3/04 , B21C23/001
摘要： Provided is a die for shear drawing capable of performing continuous drawing and shear deformation at the same time. The die for shear drawing includes a material processing channel in which a material is sheared and drawn while passing therethrough, wherein the processing channel includes an inlet path positioned at a front end thereof, and an outlet path positioned at a rear end thereof, when viewed from a movement direction of a material. The inlet path and the outlet path are connected to intersect a central axes thereof at a certain angle, and the processing channel includes a cross-section reduction segment allowing an outlet cross-sectional area of the outlet path to be smaller than an inlet cross-sectional area of the inlet path to thereby draw out a material from an exit of the outlet path with the material filled therein.
摘要翻译：提供一种能够同时进行连续拉伸和剪切变形的剪切拉伸模具。用于剪切的模具包括材料处理通道，其中材料在通过时被剪切和拉伸，其中处理通道包括位于其前端的入口路径和位于其后端处的出口路径从材料的移动方向。入口路径和出口路径以一定的角度连接成与其中心轴线相交，并且处理通道包括允许出口路径的出口横截面面积小于入口横截面积的横截面减小段，从而从填充在其中的材料的出口路径的出口抽出材料。

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